Method and system for transmitting or receiving feedback in wireless communication system supporting NB-IoT

A base station transmitting a feedback to a user equipment (UE) in a wireless communication system supporting narrowband (NB)-internet of things (IoT), the base station comprising:

• a radio frequency (RF) module configured to transmit and receive a radio signal;
• and
• a processor functionally connected to the RF module,
• wherein the processor is configured to:
• transmit, to the UE, a preconfigured uplink (UL) resource (PUR) configuration via RRC signalling;
• when the UE is in an idle mode, receive, from the UE, uplink data on the PUR;
• and
• transmit, to the UE, a feedback for the uplink data,
• wherein the feedback is configured to be transmitted on an NPDCCH after a specific time has passed from the PUR reception.

A method for receiving, by a user equipment (UE), a feedback from a base station in a wireless communication system supporting narrowband (NB)-internet of things (IoT), the method comprising:

• receiving, from the base station, a preconfigured uplink (UL) resource (PUR) configuration via RRC signalling;
• when the UE is in an idle mode, transmitting, to the base station, uplink data on the PUR;
• and
• receiving, from the base station, a feedback for the uplink data,
• wherein the feedback is configured to be received on an NPDCCH after a specific time has passed from the PUR transmission.

A method for transmitting, by a base station, a feedback to a user equipment (UE) in a wireless communication system supporting narrowband (NB)-internet of things (IoT), the method comprising:

• transmitting, to the UE, a preconfigured uplink (UL) resource (PUR) configuration via RRC signalling;
• when the UE is in an idle mode, receiving, from the UE, uplink data on the PUR;
• and
• transmitting, to the UE, a feedback for the uplink data,
• wherein the feedback is configured to be transmitted on an NPDCCH after a specific time has passed from the PUR reception.